Hochfrequente Fackelentladung als Spektralquelle

Bădărău, E.; Giurgea, M.; Giurgea, Gh.; Trutia, Ath.

doi:10.1016/s0371-1951(56)80074-x

Cited by 17 publications

(4 citation statements)

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“…Biosorbents are readily available and can remove heavy metals at concentrations as low as 1 mg per ton (Montes-Atenas and Schroeder 2015), often unattainable by conventional methods. The main advantages of biosorption over conventional methods are the low cost of renewable organic material, the minimal use of chemicals, the possibility of metal recovery, and the regeneration of the biosorbent (Bailey et al 1999;Vieira and Volesky 2000). In recent decades, a high number of studies have been conducted to find inexpensive and sustainable sorbent materials for the removal of heavy metal species from aqueous solutions (Al-Asheh et al 2003;Cao et al 2004;Jang et al 2005).…”

Section: Biosorptionmentioning

confidence: 99%

“…However, little effort has been made to design economically viable industrial applications (Sud et al 2008). Seaweeds, molds, yeasts, other microbial biomass, and agricultural waste have been widely explored (Zhou and Kiff 1991;Bailey et al 1999;Sudha and Abraham 2003), but recently the focus has been on studying waste and the by-products of large-scale industrial operations. Materials containing cellulose especially show potential in metal binding.…”

Section: Biosorptionmentioning

confidence: 99%

“…Technology for ICP-based methods was first developed in the 1960s, and the first application of induction plasma was described by Bâdârâu et al (1956). The first commercial spectrometers were sold in the mid-1970s.…”

Section: Icp Analysismentioning

confidence: 99%

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Biosorption of heavy metals by lignocellulosic biomass and chemical analysis

Lindholm‐Lehto

2019

BioRes

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Many types of lignocellulosic biomass show effective binding of toxic heavy metals from industrial and environmental effluents. Biosorption is an emerging option for conventional methods to remove heavy metals, some of them with even better efficiencies compared to conventional methods. Raw material for biosorption is typically low-cost and easily available, including agricultural waste or forest residues such as sawdust, bark, or needles. This review concentrates on the accumulation of heavy metals by lignocellulosic biosorbents. Thus far, biosorption has not been economically feasible on a large scale and needs further development for profitability. Industrial-scale wood-based biosorbent applications are especially still lacking. Moreover, due to legislative demands, there is an increasing need for accurate and reliable analytical methods for metal analysis of environmental and industrial effluents. In the future, biosorption processes are likely to become common, and the requirement for environmental monitoring will increase due to ever restricting regulations. This emphasizes not only the need for the development of feasible process solutions, but also a requirement for accurate analytical methods.

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Section: Biosorptionmentioning

confidence: 99%

Section: Biosorptionmentioning

confidence: 99%

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Biosorption of heavy metals by lignocellulosic biomass and chemical analysis

Lindholm‐Lehto

2019

BioRes

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“…Up to date the torch discharge has been mainly used in spectral analysis, see e.g. [11][12][13][14][15][16][17]. The mentioned experiments with an RF arc torch plasma source have shown that such a system can represent, in particular cases, a useful tool for the plasma-aided surface treatment technology.…”

Section: Introductionmentioning

confidence: 99%

The high pressure torch discharge plasma source

Kapička

Šı́cha

Klíma

et al. 1999

Plasma Sources Sci. Technol.

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We present a plasma source which works on the principle of the arc torch discharge. The powered electrode of the arc torch discharge was made from a thin pipe that simultaneously acts as the nozzle through which the working gas flows to the discharge region. The flow of the working gas stabilizes the arc torch discharge and a well defined plasma channel is created. The advantage of this system is that it is able to work at high pressure of working gas up to atmospheric pressure inside the plasma-chemical reactor and also in free space.

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